ELECTROSTATIC COATING METHOD USING DIRECT CHARGING-TYPE SOLVENT-BASED PAINT AND ELECTROSTATIC COATING DEVICE

摘要

In order to improve the coating efficiency of a solvent-based paint on an object to be coated, this electrostatic coating method includes: a step in which a solvent-based paint t is supplied along a paint path 6 to a paint spray unit 4; a step in which a high voltage is applied to the solvent-based paint t as a result of direct contact with a high-voltage electrode 5; and a step in which the solvent-based paint t is sprayed from the paint spray unit 4 in a state in which a high voltage is applied to the solvent-based paint t by the high-voltage electrode 5. The electrostatic coating method comprises: a step in which, by using a solvent-based paint t having an electric resistance set to lower than a setting threshold value, the amount of charge in paint particles in the solvent-based paint t at the point when direct contact between the paint particles and the high-voltage electrode 5 is broken is increased; and a step in which the amount of charge in the paint particles is further increased by causing ions released from the high-voltage electrode 5 to collide into the flying paint particles.